SCF Reference Manual for the Storage Subsystem (G06.28+, H06.05+, J06.03+)

NOTE: This attribute is not valid for the PROFILE object.
This attribute is optional if BACKUPSAC is given in name format but required if BACKUPSAC
is given in number format.
BACKUPPORTNAME number
specifies the Fibre Channel port name (WWN) used by the backup path to a disk volume on
the Enterprise Storage System (ESS)
NOTE: This attribute is not valid for the PROFILE object.
The ESS administrator must give you the WWN so that you can specify it in this attribute.
Enter number as a 16 character hexadecimal number, without a leading %H.
BACKUPSAC { number | name }
is the SAC that controls the backup path to the device
NOTE: This attribute is not valid for the PROFILE object.
is the SAC subdevice number on the adapter. If you specify BACKUPSAC in number format, you
must also specify BACKUPLOCATION.
number
is the full name of the SAC location. For
example:SNDA.SAC-1.GRP-1.MOD-1.SLOT-53FCSA.SAC-1.GRP-11.MOD-2.SLOT-5Use this
name
form to override the default selection of which adapter gets the -P path and which gets the -B path.An
FCSA must be located in either MOD- 2 or MOD-3 of an IOAM enclosure. There are five slots in
each IOAM module
CACHE { ( block-size, num-blocks ) | ( ( block-size, num-blocks ), ( block-size,
num-blocks ) ) }
specifies the disk cache configuration for an in-use volume.
NOTE: This attribute is not valid for the ADD DISK command and the PROFILE object.
Disk cache configuration is the number and size of blocks read from disk and stored in the
processor for use as virtual memory. If you do not specify a value, SCF uses values set by the
disk process, which might cause performance problems
is a sector size in bytes or kilobytes:block-size
512 or .5K
1024 or 1K
2048 or 2K
4096 or 4K
32768 or 32K
is the number of blocks to be allocated in cache. The maximum number of blocks is 2,097,152
regardless of block-size. The minimum number of blocks is 18 multiplied by the number of
num-blocks
disk processes configured for the volume. Use the INFO DISK, CONFIG command to display this
value in the NumDiskProcesses field.
Before using this attribute, see “Considerations for ALTER DISK, CACHE and Disks” (page 86).
CACHESIZE number
is the number of entries of the name cache of the virtual disk process
NOTE: This attribute is only valid for virtual disks.
ADD Command 201